export const DIFF_THEME_NAMES = { light: "pierre-light", dark: "pierre-dark",} as const; export type DiffThemeName = (typeof DIFF_THEME_NAMES)[keyof typeof DIFF_THEME_NAMES]; export function resolveDiffThemeName(theme: "light" | "dark"): DiffThemeName { return theme === "dark" ? DIFF_THEME_NAMES.dark : DIFF_THEME_NAMES.light;} const FNV_OFFSET_BASIS_32 = 0x811c9dc5;const FNV_PRIME_32 = 0x01000193;const SECONDARY_HASH_SEED = 0x9e3779b9;const SECONDARY_HASH_MULTIPLIER = 0x85ebca6b; export function fnv1a32( input: string, seed = FNV_OFFSET_BASIS_32, multiplier = FNV_PRIME_32,): number { let hash = seed >>> 0; for (let index = 0; index < input.length; index += 1) { hash ^= input.charCodeAt(index); hash = Math.imul(hash, multiplier) >>> 0; } return hash >>> 0;} export function buildPatchCacheKey(patch: string, scope = "diff-panel"): string { const normalizedPatch = patch.trim(); const primary = fnv1a32(normalizedPatch, FNV_OFFSET_BASIS_32, FNV_PRIME_32).toString(36); const secondary = fnv1a32( normalizedPatch, SECONDARY_HASH_SEED, SECONDARY_HASH_MULTIPLIER, ).toString(36); return `${scope}:${normalizedPatch.length}:${primary}:${secondary}`;}
export const DIFF_THEME_NAMES = {
light: "pierre-light",
dark: "pierre-dark",
} as const;
export type DiffThemeName = (typeof DIFF_THEME_NAMES)[keyof typeof DIFF_THEME_NAMES];
export function resolveDiffThemeName(theme: "light" | "dark"): DiffThemeName {
return theme === "dark" ? DIFF_THEME_NAMES.dark : DIFF_THEME_NAMES.light;
}
const FNV_OFFSET_BASIS_32 = 0x811c9dc5;
const FNV_PRIME_32 = 0x01000193;
const SECONDARY_HASH_SEED = 0x9e3779b9;
const SECONDARY_HASH_MULTIPLIER = 0x85ebca6b;
export function fnv1a32(
input: string,
seed = FNV_OFFSET_BASIS_32,
multiplier = FNV_PRIME_32,
): number {
let hash = seed >>> 0;
for (let index = 0; index < input.length; index += 1) {
hash ^= input.charCodeAt(index);
hash = Math.imul(hash, multiplier) >>> 0;
}
return hash >>> 0;
}
export function buildPatchCacheKey(patch: string, scope = "diff-panel"): string {
const normalizedPatch = patch.trim();
const primary = fnv1a32(normalizedPatch, FNV_OFFSET_BASIS_32, FNV_PRIME_32).toString(36);
const secondary = fnv1a32(
normalizedPatch,
SECONDARY_HASH_SEED,
SECONDARY_HASH_MULTIPLIER,
).toString(36);
return `${scope}:${normalizedPatch.length}:${primary}:${secondary}`;
}